Wilhelm sponholz



Patented Apr. 23, v1929.

UNITED STATES 'WILHELM SPONHOLZ, OF BERLIN, GERMANY.

TEXTILEFAZBRIG AND METHOD OF MAKING SAME.

No Drawing. Application filed November 23, 1926, Serial No. 150,382, andin Germany May 11, 1926.

My invention relates to textile fabrics and to a method of making sameand it is an object of my invention to provide a fabric of the kinddescribed the. edges of which are not subject to fraying.

' Fraying ,is a very undesirable property in fabrics which are cut intostrips, such as muslin bandages, etc. It. has already been proposed toovercome the tendency to fraying by providing such articles with solidselvages but this is rather expensive and therefore does not pay .in allcases, and it has also been proposed for cheaper materials to impregnatethe edges of the bandages etc. with a chemical, for instance,

a solution of acetyl cellulose. However, this method involves thedrawbacks that it increases the cost of the article .as regardsmaterialand labour, the edge often becomes too hard and 'too thick and it cannotbe avoided to impregnate. the weft threads so that the impregnated edgeinterferes with the proper use of the article.

I havefound that fabrics of any kind may be provided with a solid anddurable edge in a very simple manner and without material increase ofcost by weaving into the fabric at those points where it is to be cut,threads of a material which is soluble in a suitable solvent.- When thefabric is treated with such solvent the threads will become sticky andfraying will be prevented after the fabric has been cut into strips.

The same effect may be achieved in a lessconvenient manner by placingthreads of asoluble nature on the fabric and causing them to becomesticky. On the other hand, this method involves the advantage thatpieces of any desired configuration may be 4 cut from the fabric andtheir edges may be solidified by threads of a soluble nature placed onthe fabric along the contours of thepieces.

.Generally, threads -of artificial silk are 4 suitable as solublethreads if made from cellulose acetate. It is well known that suchthreads are readily soluble in acetone or acetic ester. By weaving oneor more.

such threads into the fab'ric along the edges and treating the fabricwith a solventby means of any moistening device where the.

to slip past the threads of artificial silk threads of the insolublearea.

threads are inserted, the threads will stick and fraying is prevented.

. It is a very important feature of my invention, particularly asapplied to bandages of muslin, that the layer of artificial threadsalong the edges of the bandage is so thin that it will leave practicallyunaltered the character of the threads in the fabric and notwithstandingthis will prevent fraying.

Instead of threads of artificial silk as described by way of example,where the treatment with solvents efi'ects-a water-insolubleimpregnation along the edges, threads of any other material may be used.Such threads may include thread forming cellulose derivatives includingcellulose acetate and cellulose nitrate or other cellulose derivativeswhich can be converted into useful textile threads as is done in themanufacture of artificial silk therefrom.

I claim: I

1. A' fabric comprising a body of textile threads insoluble n organicsolvents and an edging, of textile'threads soluble in organic solvents,said soluble textile threads being adherent to the body fabric and toeachother.

- 2. A fabric adapted to be cut into strips consisting v of areas wovenwith .textile threads insoluble in organic solvents. and spacing areasbetween said first mentioned areas woven of textile threads soluble in[organic solvents, said soluble textile threads being adherent to eachother and to the 3. The method of making fabrics which will not fraywhen out into strips comprising weaving threads of material soluble'inorganic solvents but insoluble in water in the edging ofthc fabric andapplying an organic solvent thereto.

4. The method of making fabrics which will not fray when out into stripscom risganic solvents for thread-forming cellulose ing weaving threadsof material msolub e in derivatives and an edging of threads comwaterbut soluble in organic solvents into posed of cellulose derivatlves. 1the-fabric and applying an organic solvent In testimony whereof, I havesigned my 5 thereto. name to this specification.

5. A fabric adapted to becut into strips f c 4 comprising textilethreads insoluble in or- WILHELM SPONHOLZ.

